Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Clausocalanoidea ( Superfamille )
        Aetideidae ( Famille )
            Euchirella ( Genre )
Euchirella similis  Wolfenden, 1911   (F)
Ref.:
Wolfenden, 1911 (p.238, Descr.F, figs.F); Vervoort, 1957 (p.64); 1963 b (p.135: Rem.); Park, 1978 (p.155, figs.F); Bradford & Jillett, 1980 (p.43, figs.F, fig. 73, distribution chart); Vaupel Klein, 1980 (p.152); 1984 a (p.46, figs.F, Table II: characters); Markhaseva, 1996 (p.167, figs.F, ? M); Bradford-Grieve & al., 1999 (p.879, 921, figs.F); Park & Ferrari, 2009 (p.143, Table 5, Appendix 1, biogeography from Southern Ocean)
Espèce Euchirella similis - Planche 1 de figures morphologiquesissued from : T. Park in Antarctic Res. Ser. Washington, 1978, 27. [p.156, Fig.35].
Female: A, habitus (dorsal view); B, idem (lateral); C, forehead (lateral); D, distal part of metasome and urosome (dorsal view); E, idem (left side); F, idem (right side); G, genital segment (ventral view); H, A2.


Espèce Euchirella similis - Planche 2 de figures morphologiquesissued from : T. Park in Antarctic Res. Ser. Washington, 1978, 27. [p.157, Fig.36].
Female: A, Mx1; B, P1; C, P2; D, P3; E, coxae of P5 (posterior view). P1-3: legs (posterior view).


Espèce Euchirella similis - Planche 3 de figures morphologiquesissued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.169, Fig.130].
Female & Male (specimens from SE Pacif.). Ce: forehead (dorsal, and lateralleft and right, respectively); Re: exopod; CP4: spines of coxopod of P4.


Espèce Euchirella similis - Planche 4 de figures morphologiquesissued from : J.M. Bradford & J.B. Jillett in Mem. N.Z. Oceanogr. Inst., 86, 1980. [p.44, Fig.27].
Female: A, habitus (dorsal); B, idem (lateral right side); C, basipod 1 of P4.


Espèce Euchirella similis - Planche 5 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [p.238, Fig.23].
Female: a, habitus (lateral, with spematophore); b, posterior part cephalothorax and urosome (dorsal); c-d, basipod segment of P4.


Espèce Euchirella similis - Planche 6 de figures morphologiquesissued from : R.N. Wolfenden in Die Marinen Copepoden der Deutschen Südpolar-Expedition 1901-1903, 1911. [Pl.XXVIII, Figs.1-2].
Female: 1, A2; 2, P2 (endiopod missing)


Espèce Euchirella similis - Planche 7 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.63, Fig.5, d].
Female: d, condition of the distal small seta on A1 segment 5.
Nota: modified, type II seta, with slightly widened distal part. (see Pseudochirella obesa p.63, fig.5,a)
Scale bar 0.05 mm.


Espèce Euchirella similis - Planche 8 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.76, Fig.14, j].
Female: j, arrangement of spinules on the lateral tubercle of endopod of P1.
Scale bar 0.067 mm.
Nota: Spinules of approximately equal size (as other Euchirella species) and arranged in a more or less regular row.


Espèce Euchirella similis - Planche 9 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.80, Fig.16, c, d].
Female: c, number, shape, and size denticles along the lateral edge od the terminal seta on exopdal segment 3 of P1; d, detail of the same seta.
Scale bar: 0.4 mm (c); 0.067 mm (d).


Espèce Euchirella similis - Planche 10 de figures morphologiquesEuchirella similis female:
1 - Crest absent.
2 - Genital segment slightly asymmetrical.
3 - Genital segment with large projection on the right side (dorsal view), left side without sweeling .
4 - Projection on the right of genital segment abruptly prominent (dorsal view). Coxopodite of P4 with 2-3 spines.
5 - Projection on genital segment is ear-like, arranged in its anterior half.


Espèce Euchirella similis - Planche 11 de figures morphologiquesIssued from : V.N. Andronov in Russian Acad. Sci. P.P. Shirshov Inst. Oceanol. Atlantic Branch, Kaliningrad, 2014. [p.85, Fig.22: 14]. Euchirella similis after Markhaseva, 1996.
Male P5.


Espèce Euchirella similis - Planche 12 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.66, Fig.7, c].
Euchirella similis c, A2 arrangements of spinules and hairs on the posterior edge of endopodite 2+3 (right appendage of medial view ): 4 spinules spinules in distal patch.


Espèce Euchirella similis - Planche 13 de figures morphologiquesissued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.68, Fig.8, f].
Euchirella similis: Structure and setal armature of basipode 2 of Md (left appendage medial). No seta present.


Espèce Euchirella similis - Planche 14 de figures morphologiquesIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Table II].
Euchirella similis Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).


Espèce Euchirella similis - Planche 15 de figures morphologiquesIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Table II].
Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).


Espèce Euchirella similis - Planche 16 de figures morphologiquesIssued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Table II].
Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).

Ref. compl.:
Sewell, 1948 (p.500); Unterüberbacher, 1964 (p.22); Grice & Hulsemann, 1968 (tab.2); Björnberg, 1973 (p.324, 386); Razouls & al., 2000 (p.343, tab. 3, Appendix); Schukat & al., 2013 (p.1, Table 1, 2, fig.2, respiration, ingestion);
NZ: 6

Carte de distribution de Euchirella similis par zones géographiques
Espèce Euchirella similis - Carte de distribution 3Issued from : J.M. Bradford & J.B. Jillett in New Zealand Ocean. Inst. Memoir, 86, 1980. [p.88-89, Figs.65-67].
Distribution of several species of Euchirella in the Tasman Sea and around New Zealand.
Nota: Euchirella indica (= Euchirella massinensis indica).
Loc:
sub-Antarct. (Indian, SE Pacif.), off South Africa (W), Namibia, off S St.-Helena Is., Cape Verde Is., S Indian, SW Australia, S Tasmania, New Zealand, off Juan Fernandez Is., Chile.

Type locality: Atlantic (between 17°28'N and 35°39'S).
N: 12
Lg.:
(10) F: 4; (37) F: 5,41-4; (201) F: 4,75; (242) F: 5,3-4,7; (432) F: 5,15-4,3; (1257) F: 5,0-5,3; {F: 4,00-5,41}

The mean female size 4.701 mm (n = 8; SD = 0.5618).
Rem.: méso-bathypélagique.
Sampling depth (sub-Antarct.) : 400-2000 m.
Voir aussi les remarques en anglais
Dernière mise à jour : 22/02/2021

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 19 avril 2021]

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